<TreeSelect TItem="string"
			Style="width:100%;"
			@bind-Value="value"
			Placeholder="Please select"
			AllowClear
			Multiple
			TreeDefaultExpandAll
			OnChange="OnValuesChange">
	<TreeNode TItem="string" Key="parent 1" title="parent 1">
		<TreeNode TItem="string" Key="parent 1-0" title="parent 1-0">
			<TreeNode TItem="string" Key="leaf1" title="my leaf" />
			<TreeNode TItem="string" Key="leaf2" title="your leaf" />
		</TreeNode>
		<TreeNode TItem="string" Key="parent 1-1" title="parent 1-1">
			<TreeNode TItem="string" Key="sss">
				<TitleTemplate>
					<b style=" color: #08c;">sss</b>
				</TitleTemplate>
			</TreeNode>
		</TreeNode>
	</TreeNode>
</TreeSelect>

@code {

	private string value;

	public void OnValuesChange(IEnumerable<string> args)
	{
		Console.WriteLine(string.Join(',', args));
	}

}